HIIT @ Goodlife Health Clubs Get a feel for functional training in our dedicated outdoor Functional Training Zone and Carseldine HIIT gym, If you are into functional strength training, our Carseldine gym has an outdoor dedicated area perfect for some high intensity outdoors. The functional HIIT gym in Carseldine includes a hi-performance strength cage, battle ropes, kettlebells, dead balls, foam plyo boxes, and much more.